diff --git a/requirements.aws-deploy.txt b/requirements.aws-deploy.txt
index 85bcbca..829d8bc 100644
--- a/requirements.aws-deploy.txt
+++ b/requirements.aws-deploy.txt
@@ -9,7 +9,7 @@ docutils==0.14
 jmespath==0.9.3
 pathspec==0.5.0
 python-dateutil==2.6.1
-PyYAML==3.12
+PyYAML==5.4
 requests==2.9.1
 semantic-version==2.5.0
 six==1.11.0
diff --git a/requirements.txt b/requirements.txt
index 220f8d3..3c10a3e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,7 +28,7 @@ psycopg2==2.7.1
 python-dateutil==2.6.0
 python-editor==1.0.3
 pytz==2017.2
-PyYAML==3.12
+PyYAML==5.4
 requests==2.18.1
 s3transfer==0.1.10
 schematics==2.0.1